Striping machine



June 9, 1936.

A. F. HULSE 2,043,377

STRIPING MACHINE Filed NOV. 29, 1935 Illlllllllllllllilllllllllllllllllllll Hiiiilllllllll ATTOE IYEK Patented June 9, 1936. v v

UNITE'DSTATES PATENT OFFICE STRIPING MACHINE "Arthur F. Hulse, Los Angeles,,Calif., assignor to Sharpe Manufacturing Company, Los Angeles, Calif., a corporation of California Application November 29, 1935, Serial No. 52,159 3 Claims. (Cl. ill-62.6)

, This invention relates to devices used by erator in a horizontal position, as illustrated in painters for striping and has for its principal Fig. 1, or it may be held vertically or in any inobjects to provide, first, a device of that chartermediate position; and like all devices of its acter which is not addicted to dripping; second. kind it operates by rolling the striping wheel 5 a device which will operate satisfactorily in along the surface to be striped-paint in the 5 either a horizontal or vertical position; and, proper quantity being continuously fed to the third, one which is well constructed, yet simple peripheral surface of the wheel during its rotain design and not excessively costly to manufaction. ture. The characteristic and novel features of the 19 The device of the present invention is of the present device lie in the arrangement for feedtype comprising a paint reservoir and a striping ing paint from the reservoir to the striping wheel-means being provided for feeding paint wheel whereby a sufiicient but not excessive from the reservoir onto the periphery of the amount is fed to the wheel continuously, withstriping wheel as needed. out regard to the position (horizontal or verti- The prior art is replete with devices of that cal) in which the device is held, for a sufficient 15 general character, but, in so far as I have been period of operation to permit a very long stripe able to ascertain, none of the prior devices is to be made by a single uninterrupted stroke and entirely satisfactory in all respects and under all whereby the possibility of accumulations of suconditions likely to be encountered in practice. perfiuous paint gathering on the outside of the Some are deficient in that they are apt to drip device on or adjacent the striping Wheel and 20 paint and others are incapable of entirely satthence dripping off onto the object being striped isfactory performance when held in a vertical is greatly reduced if not entirely eliminated. position, as for example, when working on ceil- The provision for feeding and at the same time ings. The device of the present invention is restricting the flow of paint to a propervbut characterized by certain novel features, hereinficient' quantity during rotation of the striping 25 after set forth, which obviate. the deficiencies wheel and simultaneously preventing leakage of above mentioned. paint or flow thereof when the wheel is not in In the drawing which accompanies this specirotation consists, in p in a elongated d fication, rather narrowly restricted passageway ill, a nar- 00 Fig. l is a side elevational view of a striping row peripheral C ear H we n the Striping device according to this invention-a. portion be-- wheel and the shoe 4 at points adjacent and at ing in section in order to show the plunger inside either de O the discharge 6nd f the P g the paint reservoir; way l0 and a very close running fit between the Fig. 2 is an enlarged front end view of the defiat s des of t t p g Wheel and the lugs I2 vice; and l3 to either side thereof-which lugs are 35 Fig. 3. is an enlarged longitudinal sectional integral pa O the S1108 view of the front portion of the-device; and Ordinarily, th pa a eway in m y be mp y Fig. 4 is a detail, in section, taken along the a drilled hole about one-sixteenth inch in diline 4-4 of Fig. 3. sweater and the clearance ll may be about onef= The jor Components of the. device illusthirty-secondth inch. The required diameter of 40 trated are: a tubular, cylindrical paint reservoir the passageway ill will, of course, be affected by or barrel I, a cast metal can 2 forming an extenit length and by the viscosity of the paint or sionof and closure for the front end of the resother fluid employed t t dimensions are ervolr a Stripmg Wheel 3 m the form of a not extremely critical. They must be such as to a Steel also having a knurled periphery shoe 4 prevent flowing of the paint, due to its viscosity,

detachably fa i T? g 2 2 functioning when the wheel is at a. standstill and yet not to as a-suppor or e s r p ng w ee a reciprocable plunger 5 inside the b 61 I, a plunger rod unduly interfere with its flow when it is supposed 5 connected at one end to the plunger 5 and to flow. No exact dimensions can be prescribed vided at its outer end with a button 1 to facm as to the diameter and length of the passageway tats manipulation f the plunger, a gauge or ill and the clearance ll because these will vary guide b r 3 d clamping Screw g The fu c somewhat with the viscosity of the fluid, but for tion of the guide bar is well known d requires ordinary paint the dimensions given above and no explanation here. the relative proportions shown in the drawing In operation, the device may be held by the opwill sufiice to enable anyone skilled in the art to 55 arrive at a suitable design without extensive experimentation.

It will be observed that the passageway l0 intersects the clearance space I l approximately at a tangent. The striping wheel normally rotates in the direction indicated by an arrow on Fig. 3 and, due to the fact that its knurled periphery is tangential tothe direction of flow of paint through the passageway and the further fact that the paint has considerable adhesiveness, it is continuously pulled through the passageway and fed to the wheel, always, in the right amount. Unless the paint is excessively thin it will not run out of its own volition but will be fed out only when the striping wheel is rotated. While it is preferable that the passageway Ill be tangential, or approximately so, to the periphery of the striping wheel, that is not absolutely essential because the device would still work, though not as well, even with the passageway intersecting the clearance space radially. In the latter case the feed would be dependent upon gravity together with force applied by the plunger and would, doubtless, re quire a rather continuous use of the plunger on long stripes unless the paint were quite thin.

The depth of paint adhering to the periphery of the wheel is, manifestly, determined by the clearance I I and the size of that clearance is, accordingly, important, not only from the standpoint of preventing leakage of paint, but in limiting the amount of paint applied to the wheel.

Too much paint would likely cause the stripe to be smeared and too little would not make a satisfactory stripe.

Contact pressure between the paint on the peripheral surface of the striping wheel and the object being striped will cause a small amount of paint to flow over onto the sides of the striping wheel at points adjacent the periphery, and since the wheel fits snugly between lugs 12 and I3 this superfluous paint is scraped off by the contacting edges of the lugs and would, in time, accumulate into a drop large enough to drip onto the work, if a suitable counter provision were not made. The counter provision consists in relieving, by chamfering, the edge portions of the lugs adjacent the wheel, as indicated at It and IS in Figs. 2 and 4. By so doing, pockets are formed at either side of the striping wheel serving to retain a considerable accumulation of scraped-off paint, if it should accumulate, and at the same time scraping edges are formed as indicated by the dotted line IS, in Fig. 3, at such an angle to the circumference of the wheel that a radially acting resultant force is applied to the accumulated scraped-off paint, causing the same to be moved to the peripheral edge where it is drawn into the clearance space H and thus back onto the perlpheral surface of the wheel.

With a view to facilitating the use of the herein described device on over-head surfaces such as ceilings, where it is most convenient to hold the device in a vertical position, the interior cavity of the cap 2 is made to extend a considerable distance forward of the intake end of passageway I0. This creates a space above said intake point (it being remembered that the device is being held vertically with the striping wheel upward) sufficient to store enough paint to enable the making of a very long stripe at a single stroke and without moving the plunger upwardly during the operation.

The function of plunger 5, as will be self-evident, is to force the paint in the reservoir toward the forward end as the charge diminishes and also to forcibly clear the passageway I0 in case it becomes obstructed by congealed paint and to stimulate its flow in event it may not run freely enough because of excessive viscosity. In addition, the plunger is useful for forcing cleaning fluid through the passageway i0, thus ensuring against accumulations therein of hardened paint which would have to be scraped out.

The shoe 4 may be an integral part of cap 2 but is preferably a separate detachable partespecially where it is desirable to use striping wheels of various widths. In the structure illustrated the cap 2 is slotted longitudinally at Hi to receive the shoe and hold it in alignment and the shoe is secured in place by a single screw l1.

What is claimed is:

1. A striping device comprising a barrel having an elongated paint-holding reservoir therein, a striping wheel offset from the barrel forming an integral part of said device and mounted near one end of said barrel, and means defining a restricted passageway for paint between said reservoir and the periphery of said wheel, said passageway connecting with said reservoir at a point remote from the end thereof so that there is a very considerable storage space for paint in the reservoir above the inlet to said passageway when said device is held in a vertical position with the striping wheel upward.

2. A striping device comprising a barrel having an elongated paint-holding reservoir, a shoe detachably secured to said barrel at one end thereof and having a pair of lugs, a disc-like striping wheel disposed between said lugs and rotatably supported thereby, there being a close running fit between the sides of said wheel and respectively adjacent sides of said lugs, and a small peripheral clearance between said wheel and said shoe, said reservoir being in communication with the periphery of said wheel through a narrowly restricted passageway connected with said reservoir at a point remote from the end thereof so that there is a very considerable storage space for paint in the reservoir above the inlet to said passageway when said device is held in a vertical position with the striping wheel upward.

3. A striping device comprising a barrel having an elongated paint-holding reservoir therein, a

striping wheel forming an integral part of said device and mounted near one end of and at one side of said barrel, said striping wheel projecting beyond the end of said barrel, and means defining a restricted passageway for paint between said reservoir and the periphery of said wheel, said passageway connecting with said reservoir at a point remote from the end thereof so that there is a very considerable storage space for paint in the reservoir above the inlet to said passageway when said device is held in a vertical position with the striping wheel upward.

ARTHUR F. HULSE. 

